Hanger for transformers or the like.



Patented Aug. l2, 4902.

Ill.

FIG. 4.

- J. J. woon.

HANGER FOR TRANSFORMEBSKOR THE LIKE.

(Application led Nov. 29, 1901.)

(M Model.)

1H: Nvonms PETERS no. PHo'mLlTNo., wAsmNaToN, m c.

UNITED STATES PATENT OFFICE;

JAMES J. VOOD, OF FORT VAYNE, INDIANA.

HANGER FOR TRANSFORMERS OR THE LIKE.

SPECIFICATION forming part of Letters Patent No. 706,870, dated August 12, 1902.

Application filed November 29, 1901. Serial No. 83,988. (No model.)

To all whom it may concern:

Beit known that I, JAMES J. WOOD, a citizen of the United States, residing at Fort Vayne, county of Allen, State of Indiana, have invented certain new and useful Improvements in Hangers for Transformers or the Like, of which the following is a specification.

My invention aims to provide an improved hanger for transformers or the like, and especially to provide an improvement by means of which a supporting member, such as the hook which ordinarily engages the cross-arms at the top of a pole, is attached to and locked in engagement with the casing of the transformer.

My invention provides various improvement-s in detail, as specified hereinafter.

Referring to the accompanying drawings, showing embodiments of my invention, Figure l is a front view of a transformer carried upon a pair of hooks. Fig. 2 is a side elevation of the same, partly in section. Fig'. 3 is a front elevation of a transformer carried on a single hook, certain parts being broken away to show my invention more clearly. Fig e is a view of the locking device of Fig. l, showing the parts in the position for disengagement of the casing from the hooks.

It is customary to suspend transformers from the cross-arms of poles by means of a supporting member havingits upper end bent to iit over one of the cross-arms and which is generally called a hook. The casing of the transformer is usually attached to the hook by means of bolts passing through the hook and carrying nuts at their ends at the back face of the hook. These nuts often coincide in position with a' lower cross-arm, so as not to interfere with the proper setting of the hook. When it is desired to remove the transformer, the nuts have to be loosened, and as they have usually rusted fast by eX- posure to the weather, and as'the operator is in a very difficult' position for working a wrench the releasingof the transformer from the hook is a matter of considerable difficulty. l/Vhen the nut is finally withdrawn, it is often lost, as well as the bolt. My invention avoids these disadvantages by providing a supporting member (which may be in the shape of the usual hook) which has an uninterrupted fiat rear face, so that it may lie evenly against the cross-arm, no matter at what position the latter occurs. Complementary engaging means on the supporting member and the casing are provided for clamping the supporting member in engagement with the casing, such means preferably comprising a lug, stud, or the like on one of said parts and means arranged, preferably, on the front of the other. of said parts for engaging said lug and locking the same against disengagement. The annoyance of losing small parts, such as bolts or nuts, is avoided by permanently connecting the attaching means to the supporting member. The difficulty occasioned by the necessity of using a wrench upon a rusted nut from a seat on the cross-arm of a pole is avoided by the provision of a wedge which holds the parts fast together, but which may be released by a blow in the proper direction from a hammer or other tool.

Referring to the construction shown in the drawings, A indicates a casing such as is commonly used for transformers, and B indicates a pair of hooks of the usual or any suitable design arranged to hook at their upper ends over a cross-arm C and to rest withtheir rear 4faces against any lower cross-arm O/ which there may be, and also to be attached, if desired, by means of a spike or the like passing through a hole D into a registering cross-arm C. The back E of the casing is provided with one or more lugs F, cast integral therewith. The lugs are recessed, as shown, and preferably undercut,so as to receive the heads G of studs H, which, according to the construction illustrated, are riveted to the body of the hook B. Vhere double hooks are to be used,the transformer-casing should be provided with four lugs F, and in case only a single hook B is used, as shown in Fig. 3, the casing is provided with a single pair of lugs F, arranged in vertical line with each other. The manner of engagement of theparts F and H is obvious. For maintaining the parts in this engagement l have shown a wed ge J, carried at the end of an arm K, which is pivoted at L upon the hook B or B. One end J of the wedge is nearer the center of rotation L than the opposite end J2, so that after the lug F is brought down over the stud H the end J ICO of the wedge may be swung down upon the lug F. A few hammer-blows upon the end J2 of the Wedge will then drive it to the position of Figs. l, 2, and 3, pressing the parts F and H into engagement and maintaining them so. The wedge J may also be provided with a rib M on its inner side and extending beyond its Wedge face, so as to enter between the end of the lug F and the face of the hook B and press the wall of the recess in the lug against the head G of the stud, and thus prevent relative movement in a direction lengthwise of the stud.

In order to release the casing from the hook, it is only necessary to strike the end of the Wedge J a blow with any heavy tool, when it will be thrown to the position indicated by Fig. 4. The closeness of the t of the wedge on its pivot or the invariable rusting of the parts, or both, may be depended upon to maintain the Wedge in its raised position, or, if necessary, the operator can hold it in such position temporarily. The casing can then be lifted, as indicated by the position of the lugs F, Fig. 4, and removed.

Forconvenience in disengagin g the wedges, especially with the double hook, Fig. l, I form the wedges with their ends J2 projecting far enough to be readily struck upwardly by the heavy pliers usually carried by a lineman. I thus avoid the necessity of the linemans carrying a Wrench, this being a tool which he usually does not carry.

It is not at all essential to my invention that the parts shall have the particular construction shown or that they shall be mounted in the identical relative position shown.

Various modications in detail and reversals and rearrangements of the parts are possible to those skilled in the art Without departing from my invention. Therefore though I have described with great particularity of detail certain embodiments of my invention, yet it is to be understood that I am not limited to the particular embodiments shown and described.

I claim as my invention- 1. A hook for the suspension of transformers or the like, adapted for attachment at its upper end to a cross-arm and carrying means for clamping it in engagement with a complementary engaging means on the casing of a transformer, said hook having an, uninterrupted dat rear face.

2. A hook for the suspension of transformers or the like, adapted for attachment at its upper end to a cross-arm and carrying on its front face means for clamping it in engagement with a complementary engaging means on the casing of a transformer and having an uninterrupted dat rear face.

3. A hook for the suspension of transformers. or the like, adapted for attachment at its upper end to a cross-arm and carrying means for clamping it in engagement with a complementary engaging means on the casing of a transformer, said means being permanently connected to said hook.

4. Means for attaching a supporting member for the suspension of transformers or the like to a casing for such transformers, comprising a lug on one of said parts and means for locking said lug in engagement with the other of said parts, said locking means being entirely on the adjacent face of the latter of said parts.

5. Means for attaching a supporting member for the'suspension of transformers or the like to a casing for such transformers, comprising a lug on one of said parts and means for locking said lug in engagement with the other of said parts, said locking means being permanently'connected to the latter of said parts.

6. Means for attaching a supporting member for the suspension of transformers or the like to a casing for such transformers, comprising a pair of complementary engaging members of said parts, and a Wedge adapted to maintain said engaging members in engagement.

7. Means for attaching a supporting member for the suspension of transformers or the like to a casing for such transformers, comprising a recessed lug on one of said part-s, a stud on the other of said parts adapted to be engaged in said lug, and a wedge adapted to maintain such engagement.

8. Means for attaching asupporting member for the suspension of transformers or the like to a casing for such transformers, comprising a recessed lug on one of said parts, a stud on the other of said parts adapted to be engaged in said lng, and a wedge carried at the end of a pivoted arm and adapted to maintain such engagement.

9. Means for attaching asupporting member for lthe suspension of transformers or the like to a casing for such transformers, comprising an undercut recessed lug on one of said parts, a stud on the other of said parts having a head adapted to engage in the recess of said lug, and a wedge adapted to hold said lug and bolt in engagement, said wedge having a rib M for holding said head against the outer wall of said recess.

10. Asupporting member for the suspension of transformers or the like, comprising a hook having an uninterrupted dat rear face and carrying on its front face a stud permanently attached thereto.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

JAMES J. VOOD.

Witnesses:

A. L. HADLEY, T. W. BEHAN.

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